New Post: Multiple WaveOut Objects

Thanks,
About your last comment, it was what I did at first

• Create WaveFileReaders
• Create WaveOut
• Set the device number
• WaveOut.Init(stream);
• WaveOut.Play();
  

I do it twice but it seems the first one play, then the second one. So I assume the code is synchronous ? So I use Task to made it asynchronous, but it do not work on both device

I'll try BufferedWaveProvider